Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-qg0-f47.google.com ([209.85.192.47]:64930 "EHLO mail-qg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750813AbaEBS7i (ORCPT ); Fri, 2 May 2014 14:59:38 -0400 Received: by mail-qg0-f47.google.com with SMTP id e89so5070124qgf.6 for ; Fri, 02 May 2014 11:59:37 -0700 (PDT) Date: Fri, 2 May 2014 14:59:33 -0400 From: Jeff Layton To: Anna Schumaker Cc: , , , Subject: Re: [PATCH v2 04/17] NFS: Create a common read and write header struct Message-ID: <20140502145933.604190cd@tlielax.poochiereds.net> In-Reply-To: <1398459360-2093-5-git-send-email-Anna.Schumaker@Netapp.com> References: <1398459360-2093-1-git-send-email-Anna.Schumaker@Netapp.com> <1398459360-2093-5-git-send-email-Anna.Schumaker@Netapp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-nfs-owner@vger.kernel.org List-ID: On Fri, 25 Apr 2014 16:55:47 -0400 Anna Schumaker wrote: > From: Anna Schumaker > > The only difference is the write verifier field, so I leave a comment > saying that it's not used for reads. > nit: that comment doesn't seem to exist... > Signed-off-by: Anna Schumaker > --- > fs/nfs/internal.h | 4 ++-- > fs/nfs/pnfs.c | 4 ++-- > fs/nfs/read.c | 14 +++++++------- > fs/nfs/write.c | 14 +++++++------- > include/linux/nfs_xdr.h | 7 +------ > 5 files changed, 19 insertions(+), 24 deletions(-) > > diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h > index af01b80..b0e7a41 100644 > --- a/fs/nfs/internal.h > +++ b/fs/nfs/internal.h > @@ -395,7 +395,7 @@ extern int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool > > struct nfs_pgio_completion_ops; > /* read.c */ > -extern struct nfs_read_header *nfs_readhdr_alloc(void); > +extern struct nfs_rw_header *nfs_readhdr_alloc(void); > extern void nfs_readhdr_free(struct nfs_pgio_header *hdr); > extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, > struct inode *inode, bool force_mds, > @@ -424,7 +424,7 @@ int nfs_remount(struct super_block *sb, int *flags, char *raw_data); > extern void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, > struct inode *inode, int ioflags, bool force_mds, > const struct nfs_pgio_completion_ops *compl_ops); > -extern struct nfs_write_header *nfs_writehdr_alloc(void); > +extern struct nfs_rw_header *nfs_writehdr_alloc(void); > extern void nfs_writehdr_free(struct nfs_pgio_header *hdr); > extern int nfs_generic_flush(struct nfs_pageio_descriptor *desc, > struct nfs_pgio_header *hdr); > diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c > index e9cea3a..43cfe11 100644 > --- a/fs/nfs/pnfs.c > +++ b/fs/nfs/pnfs.c > @@ -1592,7 +1592,7 @@ EXPORT_SYMBOL_GPL(pnfs_writehdr_free); > int > pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc) > { > - struct nfs_write_header *whdr; > + struct nfs_rw_header *whdr; > struct nfs_pgio_header *hdr; > int ret; > > @@ -1750,7 +1750,7 @@ EXPORT_SYMBOL_GPL(pnfs_readhdr_free); > int > pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) > { > - struct nfs_read_header *rhdr; > + struct nfs_rw_header *rhdr; > struct nfs_pgio_header *hdr; > int ret; > > diff --git a/fs/nfs/read.c b/fs/nfs/read.c > index 9e426cc..d29ca36 100644 > --- a/fs/nfs/read.c > +++ b/fs/nfs/read.c > @@ -34,9 +34,9 @@ static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops; > > static struct kmem_cache *nfs_rdata_cachep; > > -struct nfs_read_header *nfs_readhdr_alloc(void) > +struct nfs_rw_header *nfs_readhdr_alloc(void) > { > - struct nfs_read_header *rhdr; > + struct nfs_rw_header *rhdr; > > rhdr = kmem_cache_zalloc(nfs_rdata_cachep, GFP_KERNEL); > if (rhdr) { > @@ -56,7 +56,7 @@ static struct nfs_pgio_data *nfs_readdata_alloc(struct nfs_pgio_header *hdr, > { > struct nfs_pgio_data *data, *prealloc; > > - prealloc = &container_of(hdr, struct nfs_read_header, header)->rpc_data; > + prealloc = &container_of(hdr, struct nfs_rw_header, header)->rpc_data; > if (prealloc->header == NULL) > data = prealloc; > else > @@ -78,7 +78,7 @@ out: > > void nfs_readhdr_free(struct nfs_pgio_header *hdr) > { > - struct nfs_read_header *rhdr = container_of(hdr, struct nfs_read_header, header); > + struct nfs_rw_header *rhdr = container_of(hdr, struct nfs_rw_header, header); > > kmem_cache_free(nfs_rdata_cachep, rhdr); > } > @@ -87,7 +87,7 @@ EXPORT_SYMBOL_GPL(nfs_readhdr_free); > void nfs_readdata_release(struct nfs_pgio_data *rdata) > { > struct nfs_pgio_header *hdr = rdata->header; > - struct nfs_read_header *read_header = container_of(hdr, struct nfs_read_header, header); > + struct nfs_rw_header *read_header = container_of(hdr, struct nfs_rw_header, header); > > put_nfs_open_context(rdata->args.context); > if (rdata->pages.pagevec != rdata->pages.page_array) > @@ -417,7 +417,7 @@ EXPORT_SYMBOL_GPL(nfs_generic_pagein); > > static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) > { > - struct nfs_read_header *rhdr; > + struct nfs_rw_header *rhdr; > struct nfs_pgio_header *hdr; > int ret; > > @@ -680,7 +680,7 @@ out: > int __init nfs_init_readpagecache(void) > { > nfs_rdata_cachep = kmem_cache_create("nfs_read_data", > - sizeof(struct nfs_read_header), > + sizeof(struct nfs_rw_header), > 0, SLAB_HWCACHE_ALIGN, > NULL); > if (nfs_rdata_cachep == NULL) > diff --git a/fs/nfs/write.c b/fs/nfs/write.c > index 3a2fc5c..37c4c98 100644 > --- a/fs/nfs/write.c > +++ b/fs/nfs/write.c > @@ -70,9 +70,9 @@ void nfs_commit_free(struct nfs_commit_data *p) > } > EXPORT_SYMBOL_GPL(nfs_commit_free); > > -struct nfs_write_header *nfs_writehdr_alloc(void) > +struct nfs_rw_header *nfs_writehdr_alloc(void) > { > - struct nfs_write_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO); > + struct nfs_rw_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO); > > if (p) { > struct nfs_pgio_header *hdr = &p->header; > @@ -93,7 +93,7 @@ static struct nfs_pgio_data *nfs_writedata_alloc(struct nfs_pgio_header *hdr, > { > struct nfs_pgio_data *data, *prealloc; > > - prealloc = &container_of(hdr, struct nfs_write_header, header)->rpc_data; > + prealloc = &container_of(hdr, struct nfs_rw_header, header)->rpc_data; > if (prealloc->header == NULL) > data = prealloc; > else > @@ -115,7 +115,7 @@ out: > > void nfs_writehdr_free(struct nfs_pgio_header *hdr) > { > - struct nfs_write_header *whdr = container_of(hdr, struct nfs_write_header, header); > + struct nfs_rw_header *whdr = container_of(hdr, struct nfs_rw_header, header); > mempool_free(whdr, nfs_wdata_mempool); > } > EXPORT_SYMBOL_GPL(nfs_writehdr_free); > @@ -123,7 +123,7 @@ EXPORT_SYMBOL_GPL(nfs_writehdr_free); > void nfs_writedata_release(struct nfs_pgio_data *wdata) > { > struct nfs_pgio_header *hdr = wdata->header; > - struct nfs_write_header *write_header = container_of(hdr, struct nfs_write_header, header); > + struct nfs_rw_header *write_header = container_of(hdr, struct nfs_rw_header, header); > > put_nfs_open_context(wdata->args.context); > if (wdata->pages.pagevec != wdata->pages.page_array) > @@ -1253,7 +1253,7 @@ EXPORT_SYMBOL_GPL(nfs_generic_flush); > > static int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc) > { > - struct nfs_write_header *whdr; > + struct nfs_rw_header *whdr; > struct nfs_pgio_header *hdr; > int ret; > > @@ -1910,7 +1910,7 @@ int nfs_migrate_page(struct address_space *mapping, struct page *newpage, > int __init nfs_init_writepagecache(void) > { > nfs_wdata_cachep = kmem_cache_create("nfs_write_data", > - sizeof(struct nfs_write_header), > + sizeof(struct nfs_rw_header), > 0, SLAB_HWCACHE_ALIGN, > NULL); > if (nfs_wdata_cachep == NULL) > diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h > index 64f6f14..2d34e0d 100644 > --- a/include/linux/nfs_xdr.h > +++ b/include/linux/nfs_xdr.h > @@ -1294,12 +1294,7 @@ struct nfs_pgio_data { > struct nfs_client *ds_clp; /* pNFS data server */ > }; > > -struct nfs_read_header { > - struct nfs_pgio_header header; > - struct nfs_pgio_data rpc_data; > -}; > - > -struct nfs_write_header { > +struct nfs_rw_header { > struct nfs_pgio_header header; > struct nfs_pgio_data rpc_data; > struct nfs_writeverf verf; Looks good otherwise: Reviewed-by: Jeff Layton